Wrench



Jan. 27, 1931.A

Q. J. BRoUsEA'u WRENCHi Y Filer;` Noi.'

ma ATTORNEY ocTAvE J. imonssimmj scription.

spect to the shank.

Patented Jan. 27, 1931 p oF snerfrna', lwesiiNG'rom essIGNoR sneu; or snnfr'rnn, WAsHING'roN 1 i `Applicationiled. November 45,1-1928," :SerialV No.'.317;22215"'f1 i A i This invention'relates to Wrenches, and vhas for its object the perfecting of tools of this character to render the samemore eficient and convenient to operate than lother`r wrenches hitherto in use. f

A further object is to provide a strongand durable wrench comprising .few parts of in- Y. expensive construction, arranged vto be read# ily adgustedto accommodate work of differ# 10V ent characters and'sizes.y l More specilic objects vand advantages of the invention will appear in the'following de AThe invention consists in the novel construction adapta-tion and combination of parts hereinafter described and claimed. In the accompanying'drawing,` Figure 1 isa side elevation of ak wrench embodying my improvements; Fig. 2; is a plan view of the same, a portion of the handle being shown in Vlongitudinal section; and

Fig. 3 is a perspective view Vof the inner jaw member of the wrench.' Y

In said drawing7 the reference numeral 5 represents a wrench shank having 'rigid therewith at one end the lstationary jaw 6 disposed, preferably, at rightangles with re- The other end of the shank extends as aV bar'7 Vwhichis lscrew threaded, as at S, for a nut 9 which serves to secure a tubular'A handle element 10, sleeved upon the bar 7 inplace against the 1 shank shoulder 51.

The shank 5 is of an oblong shape in transverse section to provide plane side surfaces llpwith upper and lower edges of circular segmental shape which are'provided with vscrew threads '12 engaging" the internal threads of an adjusting'nut 13. Adjustably mounted'upon said shank isa yoke or frame,

shown separately in Fig.,3, theY same come.

prising a body portion having side plate Velements 14 extending the entire length'. of the frame and spaced apart to receive the'wrench shank 5-k therebetween, said *plateY kelementsV being joined at one end ofthe frame to prof j vide a plane surface 15, indicated by dotted l lines in Fig. 1, -and which is adapted to seat vagainst the under edge 16 of the shank 5.

17 represents the movable jaw which is T05 .ALEXINA Rong formed integral with an'df-depends-from.the y `yokeframebelowy` itsjseatin'gf surface 15.. Y

i At or about itsm'idl-ength the frame is'pro- Y vided with a strap element :llad'apted to/eX- tend from one side plate 14 vto the otherasa loop over theshankg'the sizeof the loop and lits positionrelative to the framefsurface 15 being such aswill permit verticali-swinging Y so thatwhen the-nut is turned in. onerotary direction or the other ythe'engagement ofthe"v l nut with the screwthreads ofthe shankwill` cause the'movable Vjaw to be 'carried'Y toward or from thestationary jaw, asjdesired-- l The opposing ends '21 and 22 of therespective. lugs,'whichv shoulderagainst the ends of theadjusting' nut, aretcurvedto permit oscilllatory .movement ltoffthellframe. To enable V-the'nut to `bemounted-between the compan#l f ion Ylugs of-the vframes side elements, Awhich extends through tlie n'ut, the lugs 20 may be provided: byr` upsetting? or turningthe ends v welding or rivetin'gthe sameto thefre'spective Y Y- side platessubs'equent i toii'nsertingv .the 'latter through the nut;` iThelugsQOemoreover,"are :disposed at aV distance from the rear fend' of.

the frameto"providethumbpieces" at-"either of 'the side plates upontheinselves;'or, vas showmbyforming said lugsasblocks 23 andV side ofthey shankfwhereby the'operatorgmay p.

rock'the'frame to swing theinovablejaw element vthereof intol or from engageable relaf' -v-tion witha pipe dr' other pieceofwork which is to beseizedbetween-the wrench jaws 6l and 17,1 in other' wordsfactuate the movable Aj aw into desiredA adjustment...singularly with ref spectto theiiXed aw. "Y

The. 'venais regulated/by"idjusingfflw movable 'jaw.f17 longitudinally 'ofV the shank` y by means ofthe nut 13. Duringsuch adjust-fjY mentor set-up movement ofv the movable jaw Y the' frame occupies V4the angular relatiomjap- :2l 'i V1,790,133

proximately, to that Which it is represented i i VKin Fig. l with respect to the shank 5 and its stationary j aw 6. i-

Such angular relation of the movable 'jaw-or 'its idling position, as yit may be termed-is .accomplished` leither by swinging by its handle the Wrench as a Whole in anongripping direction or by the Workman V suitably swinging the movable jaw through the 0, medium of the vframe arms.

While I have illustrated and described the linvention With'resp'ect to a pipe Wrench, .I A do notWish to limit myself thereto, as it may advantageouslybe usedrwith unserrate'djaws i for turning polygonal nuts and the like.

y 1. In a` Wrench,rthecombination with -a shank ,having a stationary jaw at one end thereof, saidshank havingsegmental screw i @zo threads' along its upper and lower edges, of

`a frame member mounted upon said shank for longitudinal and oscillatory movements, V`Vand a nut mounted-upon said' shankl and coupled to saidframe member for unitary A 125 motion therewith longitudinally of the shank, the internal -screw threads ofthe nut engaging the threads of;V said shank, said lframe memberincluding a movable vvrench- Y Vjaw rigid With. and depending from one end 1:30 0f side bars laterally arranged to said shank,

the other end ofthe frame members being bifurcatedto extend through openings provid- `ed by the nut at oppositesides of the shank and terminating in elements adapted to' beengaged by the thumb of-theoperator for reguv,lating theoscillatory movement of the frame j vand the movable `jaw With respect to the shank, A 'f' r n2. In a combination with a shank rigid '.0 with the fixed jaW of a Wrench having an in teriorlyy 'screw lthreaded y regulating nut mounted for longitudinal movement 'thereon, of a frame member, said frame member comprising a pair ofside bars arranged laterally VWith-respect tosaidshank andfsecured i in .integral relationship, one to the other, by a yoke projecting over said shank. and a movable jaw' disposed below said shank, said side bars being arranged yto project'v rear- '50 Wardly of said lyoke-to entend throughthe y Y regulating nutand having at opposite ends `of said extendingportion,"lug elements arranged for bearing engagementto the front and'rear portions respectively, of: said nut,

'55'and means provided byon'e of said lugs whereby said frame member may be oscil f lated to Vregulate the angular adjustment of .the movable jaw with Vrespect tothe fixed jaw of the shank.. Y. -o .y f V Signed at Seattle, Washington, this 6th 

